Glue guns.....actually hot melt guns are one of the basics of working on car interiors from my car audio installation days in the 80s and 90s.
Cheap guns and cheap glue works pretty well, especially when it's temporary.
The chemistry and technology that are in the hot melt industry are amazing, no different than the machinery some of us have in our shops - ranges from Black and Decker one time use all the way to industrial grade with a price point 20x higher.
Car manufacturers and their Tier 1 suppliers like Textron used to use hot melt for various dash and trim assembly production. After looking into this for my shop back then, I spent $200 in 1992 to get a 3M entry level hot melt gun. It was a precision instrument that also happened to be indestructible and small, light and convenient to use. Willing to bet money, it still exists and works. Never leaked out the tip, easy flow and control, etc.
The melt sticks and their compounds and melting points are also a huge part of the equation.
I recently looked into replacing my $5 cheapie that's been living in my toolbox for 20 yrs. I ended up with a $20 Arrow gun that is ok, but wont stand up on it's own and is only one temp.
Anything else I found remotely decent was over $100. Since I don't really use it, and have several hundred sticks left, this gun is fine for now. I would prefer a 3M again, but spending money on everything else has made this $20 worthwhile.
NOTE: there are 2 (or possibly more) stick diameters, so make sure you get the correct sized tool for whatever hotmelt you plan on using and being able to replenish. Obviously the general purpose is the least expensive and probably covers most of our uses from cardboard to templates to fabric and wood connections. Real hot melt is very expensive and must be purchased by the case.
a 16 year old hooligan stuck in a 55 year old's carcass